CN102878397A

CN102878397A - Device supporting arm

Info

Publication number: CN102878397A
Application number: CN2012103744279A
Authority: CN
Inventors: 濑川志朗
Original assignee: Takigen Manufacturing Co Ltd
Current assignee: Takigen Manufacturing Co Ltd
Priority date: 2011-07-08
Filing date: 2012-07-09
Publication date: 2013-01-16
Anticipated expiration: 2032-07-09
Also published as: TWI555944B; JP2013019440A; KR20130006373A; CN102878397B; TW201314095A; KR101420109B1

Abstract

A device supporting arm is composed of a plurality of arms, an adjacent arm is equipped with a fixing side positioning guiding member arranged on a bearing thereof, another arm is equipped with a movable side positioning guiding member, possesses a rod of a pushing and pressing part and a locking part. After adjacent arms are adjusted at any rotation angle, by rotating an operating rod towards a specified direction, the movable side positioning guiding member is pushed and pressed towards the fixing side positioning guiding member via the pushing and pressing part, so that the pushing and pressing part is clamped with the locking part to lock the rotation angles between arms. By rotating the operation rod towards a reverse direction, the locking is relieved. By the structure, various devices, such as monitor, etc., can be kept at the specified position required by users in the long term and stably.

Description

The device supporting arm

Technical field

The present invention relates to monitor unit, computer, television set and other various devices are supported to can be to left and right direction or the device supporting arm that moves freely of above-below direction.

Background technique

In the past, the various devices such as monitor unit, computer, television set be arranged in office or the family etc. by various forms of device supporting arms or vehicle, aircraft, the boats and ships etc. such as automobile in use.Generally speaking, a plurality of arms of device supporting arm can connect mutually rotationally by hinge means, and, each arm is connected to and can keeps arbitrarily rotation angle, at the distolateral arm of mounting end fixed base, at the front end side arm various devices are installed, so that various device can be arranged on the mounting end with moving freely in the length range of each arm.For example, Japan Patent JP-9-326980-A has disclosed this device supporting arm.In the supporting arm of the document, connect a plurality of arms by the joint portion (hinge means) with rotational resistance, at the front end pivot suspension information monitor of this supporting arm, in order to can keep information monitor towards desirable direction free to rotately.

But, in above-mentioned device supporting arm in the past, each joint component between a plurality of arms is by only utilizing butterfly spring or packing ring etc. to provide the linkage of surface friction drag effect to consist of between each arm, owing to only bearing the load of the various devices such as monitor unit and the load of various arms by the surface friction drag effect of described butterfly spring or packing ring etc., therefore, for the ability of angle between each arm of maintenance that this joint component has, load is excessive.So the problem that this supporting arm exists is: from using beginning soon, the ability of the various devices such as supporting monitor unit just reduces gradually, and device falls gradually, thereby can not remain on steadily in the long term the desired assigned position of user place.In addition, this device supporting arm because therefore the impact that is easy to be vibrated, exists the device of supporting to be easy to, is difficult to remain on steadily in the long term the problem that is suitable for most the position that the user uses when using in vehicle etc.

Summary of the invention

The present invention makes for solving this prior art problem, and its purpose is to provide the good device supporting arm at the assigned position place that the various devices such as monitor unit can be remained on steadily in the long term user's requirement.

To achieve these goals, according to the present invention, a kind of device supporting arm is provided, it is provided with a plurality of arms, the above-mentioned arm of adjacency with can mutually rotate by hinge means and the above-mentioned arm of adjacency between can keep the mode of any rotation angle to connect, the arm of terminal side is fixed on mounting end in above-mentioned a plurality of arm, arm in forward end is installed various devices, in the mode that can in the length range of above-mentioned each arm, move freely, various devices are arranged on the mounting end, it is characterized in that, above-mentioned hinge means is provided with: the bearing of the roughly tubular that the connecting end of an arm forms in the above-mentioned arm of adjacency and the connecting end of another arm that is connected form rotatably with this bearing of being connected of tubular bearing roughly; The axle that between the above-mentioned bearing of the above-mentioned arm of adjacency, connects; Be arranged on above-mentioned roughly tubular bearing outer circumferential face and comprise fixed side location guide member along a plurality of grooves that circumferentially form or hole; Drawer at movable side location guide member, as the drawer at movable side location guide member that can arrange with respect to this fixed side location guide member with advancing and retreat, it is arranged on above-mentioned another arm, and pass through spring assembly, be pulled away under normal conditions above-mentioned fixed side location guide member, and, on the first end relative with above-mentioned fixed side location guide member, have pawl or the projection that can engage with above-mentioned groove or hole; Bar, it has the push part that can push to above-mentioned fixed side location guide member above-mentioned drawer at movable side location guide member; And sticking department, it is arranged on above-mentioned drawer at movable side location guide member or above-mentioned another arm, under the state that above-mentioned drawer at movable side location guide member is pressed against on the guide member of above-mentioned fixed side location, its another part with above-mentioned push part or above-mentioned bar engages, to limit the motion of above-mentioned bar, be under the non-fastening state at the location of above-mentioned fixed side and drawer at movable side guide member, make above-mentioned arm mutually to left and right direction or above-below direction rotate, being adjusted to arbitrarily rotation angle between the above-mentioned arm, rotate the above-mentioned bar of manipulation towards prescribed direction, thereby by above-mentioned push part, push above-mentioned drawer at movable side location guide member to above-mentioned fixed side location guide member, simultaneously, another part of above-mentioned push part or above-mentioned bar is engaged with above-mentioned sticking department, above-mentioned arbitrarily rotation angle will be locked between the above-mentioned arm, by handling above-mentioned bar towards rotating with the direction of afore mentioned rules opposite direction, remove another part of above-mentioned push part or above-mentioned bar and engaging of above-mentioned sticking department, thereby remove the locking between the above-mentioned arm.

As preferably, the present invention is provided with following structure in various piece.

(1) bearing that forms at the connecting end of above-mentioned another arm is made of the pair of bearings section that has the axle through hole at its axle core, the bearing of above-mentioned roughly tubular is by being entrenched in this between the bearing portion and have the roughly semicylindrical bearing that axle passes the hole at its axle core and consist of, the axle core that makes above-mentioned axle through hole and above-mentioned axle pass the hole overlaps and makes above-mentioned roughly semicylindrical bearing to be entrenched between the above-mentioned pair of bearings section, makes above-mentioned axle run through above-mentioned axle through hole and above-mentioned axle passes the hole.

(2) be used for supporting that above-mentioned drawer at movable side location guide member has the first end support of first end of above-mentioned pawl or projection and the second end bearing section that is used for the second end of its opposition side of supporting is arranged in above-mentioned another arm, above-mentioned drawer at movable side location guide member is bearing in above-mentioned first end on the above-mentioned first end support, above-mentioned the second end is bearing in above-mentioned the second end bearing section, sandwiched can spur from above-mentioned first end support to above-mentioned the second end bearing section the helical spring of above-mentioned drawer at movable side location guide member between above-mentioned the second end and above-mentioned the second end bearing section, by this helical spring, towards the direction that is pulled away from fixed side location guide member above-mentioned drawer at movable side is located the guide member application of force under the normality.

(3) above-mentioned drawer at movable side location guide member is the tabular of essentially rectangular, and between two side, form the opening with compound shape, above-mentioned opening forms the long hole shape of extending to first end side side from the second end of above-mentioned drawer at movable side location guide member, above-mentioned the second end side in this long hole shape arranges the axle breakthrough part that passes for for the axle that supports above-mentioned drawer at movable side location guide member, the push part breakthrough part that connects for above-mentioned push part is set in above-mentioned the second end side, this push part breakthrough part has the section that is urged that is urged the parts pushing, at the locking slot of the end side formation that is urged section as the sticking department of push part, the pushing force of the push part of perforation is born by the above-mentioned section of being urged, and to the mobile above-mentioned drawer at movable side of above-mentioned fixed side location guide member pushing location guide member, in above-mentioned locking slot, embed above-mentioned push part and fixing to retraining around it, above-mentioned bar is provided with the bar main body and is formed at a pair of bar base portion on the pivot suspension side end of bar main body, this also forms the both sides of locating the above-mentioned opening of guide member at drawer at movable side in row arrangement ground to the bar base portion, each bar base portion has axle penetration hole and the push part penetration hole corresponding with above-mentioned axle breakthrough part and above-mentioned push part breakthrough part, between the push part penetration hole, pass the roller bearing of the push part breakthrough part setting of drawer at movable side location guide member by perforation, the above-mentioned push part that installation is made of roller, above-mentioned drawer at movable side location guide member and bar are arranged between two sides of above-mentioned another arm, simultaneously, above-mentioned bar main body is stretched out to the outside from the inside of above-mentioned another arm, the axle that is arranged between two sides of above-mentioned another arm runs through the axle penetration hole of above-mentioned bar base portion and the axle breakthrough part of above-mentioned drawer at movable side location guide member, be arranged on to above-mentioned bar tiltable campaign between the second end and first end of above-mentioned drawer at movable side location guide member, banking motion by above-mentioned bar, in the push part breakthrough part of above-mentioned drawer at movable side location guide member, above-mentioned push part above-mentionedly is urged section and can arranges with the chimeric mode of above-mentioned locking slot pushing, by the pushing of above-mentioned push part, above-mentioned drawer at movable side location guide member arranges in the mode that can be crimped on the guide member of fixed side location.

(4) above-mentioned a plurality of arm is made of cardinal extremity side arm, intermediate arm and front end side arm, and above-mentioned cardinal extremity side arm is provided with for installing the whole fixed base that is fixed on the mounting end that supports of supporting arm, and above-mentioned front end side arm is provided be used to the pedestal that various devices are installed.

(5) bearing of the back side by being arranged on said base, be arranged on the bearing on the above-mentioned front end side arm, the axle that between these bearings, connects, said base with can towards and above-mentioned arm between the direction of the sense of rotation quadrature mode of rotating be installed on the above-mentioned front end side arm, fix by locking device and to keep said base with respect to the rotation angle of above-mentioned front end side arm, this locking device has: the axle of the bearing of any one, a plurality of locking slot or the locking aperture that form with circular-arc arrangement roughly in said base or above-mentioned front end side arm; Form and can at above-mentioned locking slot or locking aperture relatively moves and at least one guide hole that can be oppositely arranged when said base is rotated around the axle of another bearing portion; And can be arranged on the above-mentioned guide hole towards above-mentioned locking slot or locking aperture with advancing and retreat, and pass through spring assembly, be urged under normal conditions the stop pin of the application of force to above-mentioned locking slot or locking aperture, by the slide of above-mentioned stop pin, above-mentioned stop pin can engage, break away from above-mentioned locking slot or locking aperture.

(6) said base forms with the general plane shape, and be installed in rotation on by the axle that connects its approximate centre on the bearing of back side, around the above-mentioned axle of the bearing of above-mentioned back side, by pushing the spiral retainer of ground, said base back side plug-in mounting, the fixing rotation angle that keeps said base.

According to device supporting arm of the present invention, said structure by hinge means, sandwiched has the fixed side location guide member in a plurality of grooves or hole and has pawl or the drawer at movable side of projection location guide member between the arm of adjacency, thereby arm can be adjusted to mutually any rotation angle of left and right directions or above-below direction, by towards the prescribed direction operating handle, by push part, groove or hole to fixed side location guide member push pawl or the projection that drawer at movable side is located guide member, so that another part of push part or bar engages with sticking department, in order to will be locked in arbitrarily rotation angle between the arm, therefore, can easily regulate and firmly fix a plurality of arms with angle arbitrarily, thereby the various devices such as monitor unit can be remained on steadily in the long term the assigned position place that the user requires.In addition, by rotating operating handle towards the direction opposite with prescribed direction, can remove another part of push part or bar and engaging of sticking department, thereby can remove the locking between the arm, therefore, also can easily carry out the variation of angle between the arm and regulate.

Description of drawings

Fig. 1 is the plan view of the device supporting arm of an embodiment of the present invention.

Fig. 2 is the left side view of device supporting arm among Fig. 1.

Fig. 3 is the plan view of device supporting arm among Fig. 1.

The sectional view that Fig. 4 observes for the underside side of device supporting arm from Fig. 1.

The sectional view that Fig. 5 observes for the right side of device supporting arm from Fig. 1.

Fig. 6 is the sectional view of observing from the face side device supporting arm, that particularly analyse and observe at the intermediate arm place of Fig. 1.

Fig. 7 locates the stereogram of guide member, bar, push part, sticking department etc. for the drawer at movable side that adopts in the device supporting arm of Fig. 1.

Fig. 8 has shown the action of the device supporting arm of Fig. 1, is that expression makes intermediate arm to left and right direction with respect to the cardinal extremity side arm or above-below direction rotates the figure of state of the angle of the left and right directions of regulating arm integral body or above-below direction.

Fig. 9 has shown the action of the device supporting arm of Fig. 1, is that expression makes the front end side arm to left and right direction with respect to intermediate arm or above-below direction rotates the figure of state of the angle of the left and right directions of adjusting base plate or above-below direction.

Figure 10 has shown the action of the device supporting arm of Fig. 1, and the mounting bracket that to be expression make the base plate back side with respect to the front end side arm rotates the figure of state of the angle of the above-below direction of adjusting base plate or left and right directions towards above-below direction or left and right directions.

Figure 11 has shown the action of the device supporting arm of Fig. 1, and being expression makes base plate sway the figure of state of the rotation angle of adjusting base plate with respect to the mounting bracket at the base plate back side.

(symbol description)

1 monitor arm (device supporting arm)

11 cardinal extremity side arms

110 tapped holes

12 intermediate arms

121 upper surfaces

122 lower surfaces

123 sides

124 slits

125 slits

126 axle through holes

127 wire clamps

13 front end side arms

130 axle through holes

131 sector flat plates (bearing portion)

14 fixed bases

140 screw through holes

141 screw through holes

15 base plates (pedestal)

151 recesses

152 bolt through holes

153 bolts (axle)

154 nuts

16 mounting brackets

160 mounting holes

161 front surfaces

162 sides

163 axle through holes

164 bearing portions

165 linings

166 torsion coil springs

168 packing rings

169 plain washers

170 disk spring washers

171 pins (axle)

2 hinge meanss

21 bearings

210 axle through holes

212 axles

22 bearings

220 axle through holes

221 bearing portions

222 axles

23 bearings

230 axle through holes

24 first end supports

241 frameworks

25 second end bearing sections

250 through holes

26 packing rings

27 disk spring washers

3 fixed side location guide member

301 grooves

4 drawer at movable sides location guide member

401 pawls

The drawer at movable side location guide member in 4F the place ahead

The drawer at movable side location guide member at 4R rear

41 upper surfaces (lower surface)

411 fastenings projection

42 lower surfaces (upper surface)

43 ear end faces (front-end face)

44 front-end faces (ear end face)

45 sides

450 openings

451 axle breakthrough parts

452 push part breakthrough parts

453 are urged section

454 locking slot

455 groovings

456 protruding parts

51 push part

510 rollers

511 roller bearings

52 sticking departments

53 helical springs

6 bars

61 bar main bodys

62 bar base portions

621 axle penetration holes

622 push part penetration holes

63 action pins

7 axles

8 locking devices

81 locking slot (or locking aperture)

82 guide holes

83 stop pins

831 pins

832 flanges

833 handles

84 helical springs

85 pin boss bodies

850 pin guide members

851 pin breakthrough parts

852 pin breakthrough parts

853 joints

854 fixing parts

9 spiral retainers

90 tapped holes

91 stopper body

911 thread spindles

912 contact components

913 knobs

Embodiment

Below, utilize accompanying drawing to describe being used for implementing mode of the present invention.In this embodiment, device supporting arm of the present invention is illustrated as the monitor arm that is used for arranging monitor unit in the vehicles such as car or lorry especially, in the following description, this machine supports arm is called monitor arm.

Such as Fig. 1 and shown in Figure 2, monitor arm 1 is provided with a plurality of

arms

11,12,13.But

arm

11,12,13 by articulated mounting 2,2 each other along continuous straight runs (left and right directions) or Vertical direction (above-below direction) connect rotationally, and, connect in the mode that can keep any rotation angle between the

arm

11,12,13.In addition, be provided with fixed base 14 at cardinal extremity side arm 11, this fixed base be used for all

arms

11,12,13 all supporting be fixed on as the indoor instrument panel of the vehicle drive of mounting end etc., be provided with base plate 15 for mounting monitor at front end side arm 13.

For the monitor arm 1 of this mode of execution, a plurality of

arms

11,12,13 are made of cardinal extremity side arm 11, intermediate arm 12 and front end side arm 13 these 3 arms.Intermediate arm 12 is the longest, and cardinal extremity side arm 11 is the shortest, and front end side arm 13 is shorter than intermediate arm 12, and is longer than cardinal extremity side arm 11.

Such as Fig. 1 and shown in Figure 2, intermediate arm 12 causes the square tube shape for whole the growing up of specific length that have of being made by aluminium sheet, and has upper surface 121, lower surface 122 and two sides 123,123.In addition, make the front/rear end difference opening that consists of the connecting end that is connected with front end side arm 13 and cardinal extremity side arm 11, simultaneously, be formed with bearing 22,22.In this embodiment, intermediate arm 12 be make the formation that is divided into two up and down roughly the arm member of the arm member of the upper side of reverse U shape cross section and U shaped sections and lower side be combined as a whole and two form, and consist of the roughly square tube shape of hollow.Up and down each surface 121, former and later two edge parts of 122 that forms elongate rectangular respectively along fore-and-aft direction, with roughly circular-arc from two sides 123, former and later two edge parts of 123 stretch out, and, the heart runs through formation axle through hole 220,220 therein, form the pair of bearings section 221,221,221,221 that the bearing 23,21 of the described front end side arm 13 in back and cardinal extremity side arm 11 can be chimeric.In addition, at the rear of upper surface 12 central part, be formed be used to the slit 124 that the described postero lateral arm 6 in back is passed through along fore-and-aft direction; At the place ahead of lower surface 122 central part, be formed be used to the slit 125 that the described antero-lateral rod 6 in back is passed through along fore-and-aft direction.Two sides 123,123 form with elongated rectangular shape respectively, on each side 123, with be arranged at upper surface 121 and lower surface 122 on assigned position place corresponding to each slit 124,125 fore-and-aft direction central authorities, be formed with respectively axle through hole 126,126.The axle 7 that is used for the described bar 6 in pivot suspension back connects each axle through hole 126 that is arranged on each side 123.In addition, on the upper surface 121 of this intermediate arm 12, lower surface 122 and two sides 123,123, the wire clamp 127 of the various cables that stretch out from monitor unit for constraint is installed in position.

Such as Fig. 4 and shown in Figure 5, inside at this intermediate arm 12, at each axle through hole 126,126,126,126 assigned position place, front and back, be respectively equipped with in the

guide member

4,4 of each drawer at movable side location, supporting described front and back, back the

first end support

24,24 and the second

end bearing section

25,25 of supporting the tip side of its opposition side of one tip side.In this embodiment,

first end support

24,24 forms the whole frame structure that can be entrenched in the intermediate arm 12, its substantial middle have with drawer at movable side locate

guide member

4,4 first end is held in slidably framework 241,241.The assigned position place of each

first end support

24,24 between two sides 123,123 is near pair of bearings section 221,221 and install by screw.The second

end bearing section

25,25 forms whole tabular in the intermediate arm 12 of can being entrenched in, and has for drawer at movable side

location guide member

4,4 the second end in its substantial middle to connect and it is supported to slidably through hole 250,250.By screw, each the second

end bearing section

25,25 is installed in the assigned position place of the fore-and-aft direction center side between two sides 123,123.

Such as Fig. 1 and shown in Figure 2, cardinal extremity side arm 11 is the whole bulk with specific length of being made by aluminum alloy.Be formed with the roughly bearing 21 of tubular at the front end that forms the connecting end that is connected with intermediate arm 12, be formed with the fixed side location guide member 3 that is consisted of by a plurality of grooves or hole along circumferentially setting at its outer circumferential face.In this embodiment, cardinal extremity side arm 11 by front end be the semicircle tubular then the end be that the block with compound shape of square tube shape consists of.The front end of semicircle tubular forms with the size between the pair of bearings section 221,221 of the rearward end that can embed intermediate arm 12, has been formed through axle through hole 210 at its axle core, thereby forms the bearing 21 of semicircle tubular.And at the outer circumferential face of this bearing 21, such as Fig. 2 and shown in Figure 4, the edge circumferentially is formed with a plurality of cannelures 301, thus the formative gear shape.This gear shape has formed fixed side location guide member 3.The rearward end of cardinal extremity side arm 11 is the square tube shape part that is formed on the rear line stretcher of this bearing 21, is formed with in the back the concavity section of essentially rectangular, is provided with the screw hole 110 of fixed base assembling usefulness at its place, four angles.

Such as Fig. 1 and shown in Figure 2, front end side arm 13 is the whole bulk with specific length of being made by aluminum alloy.Be formed with the roughly bearing 23 of tubular in the rearward end that consists of the connecting end that is connected with intermediate arm 12, be formed with the fixed side location guide member 3 that is consisted of by a plurality of grooves or hole along circumferentially setting at its outer circumferential face.In this embodiment, front end side arm 13 is semicircle tubular and consisting of at the block that front end has a compound shape of a pair of sector flat plate by rearward end.Roughly the rearward end of semicircle tubular is the same with the front end of cardinal extremity side arm 11, form with the size between the pair of bearings section 221,221 of the front end that can embed intermediate arm 12, be formed through axle through hole 230 at its axle core, thereby formed the bearing 23 of semicircle tubular.And at the outer circumferential face of this bearing 23, such as Fig. 2 and shown in Figure 4, the edge circumferentially is formed with a plurality of cannelures 301, thus the formative gear shape.This gear shape has formed fixed side location guide member 3.Central authorities at each the fan-shaped piece flat board 131 that forms front end have been formed through axle through hole 130,130.Have certain intervals between the pair of plates 131,131 and forwards stretch out from the front portion of the outer circumferential face of bearing 23, thereby be formed for the pair of bearings section 131,131 of assembled base seat board 15.In addition, form this to the axle through hole 130 of two flat boards in the flat board 131,131 of bearing portion or one flat plate around, along circular-arc edge part, with the roughly a plurality of sulculuses of circular-arc formation arranged side by side or hole.These grooves or hole form the locking slot (or locking aperture) 81 of the described locking device 8 in back.

Such as Fig. 4 and shown in Figure 5, articulated mounting 2,2 is respectively equipped with: the bearing 21,23 of tubular roughly, these bearings are formed on side's arm 11 in the arm 11/12 and 12/13 of adjacency, 13 the connecting end; Be formed on the bearing 22,22 that is connected with bearing 21,23 rotatably on the opposing party's arm 12,12 the connecting end; Between the bearing 21,22 of arm 11 and 12 and the axle 212,222 that between arm 12,13 bearing 22,23, connects; Be arranged on the fixed side location guide member 3 on bearing 21,23 the outer circumferential face; Be arranged on the opposing party's arm 12 and with respect to the drawer at movable side that fixed side location guide member 3 can arrange with advancing and retreat and locate guide member 4; Bar 6, it has the push part 51 that can locate to fixed side guide member 3 pushing drawer at movable side location guide members 4; And sticking department 52, it engages the motion with limit rod 6 locating under the state of guide members 4 with respect to fixed side location guide member 3 pushing drawer at movable sides with push part.Drawer at movable side location guide member 4 is pulled away from fixed side location guide member 3 under normal conditions by spring assembly, and has the pawl 401 that can engage with groove 301 in the end relative with fixed side location guide member 3.Bar 6 and sticking department 52 are the same with drawer at movable side location guide member 4, are arranged on rotationally on the intermediate arm 12.

In this embodiment, as described, each bearing 22 of the front end and back end of intermediate arm 12 is made of the pair of bearings section 221,221 with axle through hole 220, each bearing 21 of cardinal extremity side arm 11 and front end arm 13,23 adopts mode between the pair of bearings section 221,221 can embed intermediate arm 12, forms with semi-cylindrical shaped roughly, and fixed side location guide member 3,3 forms circumferential a plurality of grooves 301 at each bearing 21,23 outer circumferential face.In this embodiment, groove 301 is formed on each bearing 21,23 the outer circumferential face with 10 ° angle intervals.Each bearing 21 of these cardinal extremity side arms 11 and front end side arm 13,23 embeds between each pair of bearings section 221,221 of front end and back end of intermediate arms 12, up and down both sides and each axle through hole 210,230 with core be provided with packing ring 26,26.In addition, in the pair of bearings section 221 of the front end and back end of intermediate arm 12,221 both sides, with axle through hole 220,220 with core be disposed with packing ring 26,26 and disk spring washer 27,27, make axle 212,222 through shaft through holes 220,220 and axle through hole 210 and axle through hole 220,220 and axle through hole 230.Like this, each bearing 21 of cardinal extremity side arm 11 and front end side arm 13,23 is connected between each pair of bearings section 221,221 of front end and back end of intermediate arm 12 by axle 212,222, be arranged on fixed side location guide member 3 in these bearings 21,23,3 and the opening of the end, front and back of intermediate arm be oppositely arranged.

On the other hand, in intermediate arm 12, as already described, be provided with the first end support 24 of a tip side that supports drawer at movable side location guide member 4 and the second end bearing section 25 of supporting the tip side of its opposition side.In addition, in these first end supports 24 and the second end bearing section 25, a drawer at movable side location guide member 4 is installed respectively respectively.Described drawer at movable side location guide member 4 utilizes aluminum alloy to be formed on top or bottom, and to have a laterally long essentially rectangular of concaveconvex shape tabular.

For the drawer at movable side location guide member 4 (4R) at rear, slightly forward distolateral in the central authorities of upper surface 41 such as Fig. 5 and shown in Figure 7, be formed with fastening projection 411, lower surface 42 is with plane formation.In the present embodiment, be formed with 3 at ear end face 43 (end face relative with fixed side location guide member 3) and can locate the pawl that extends longitudinally 401 that the groove 301 of guide member 3 engages with fixed side.Front-end face 44 is with plane formation.About two sides 45,45 with plane formation, to run through these two sides 45,45 mode, form grooving 455 and have the opening 450 of compound shape.From forward end until near the substantial middle, grooving 455 arranges with horizontal roughly U font, and, in forward end the open end is set, near the central authorities closed end is set, thereby forms protruding part 456.At this protruding part 456 helical spring 53 is housed.Opening 450 forms the long hole shape of extending from front-end face 44 side direction ear end faces 43 sides of drawer at movable side location guide member 4.In the place ahead of this opening 450, be provided for supporting the axle breakthrough part 451 that drawer at movable side is located the axle 7 of guide member 4, the push part breakthrough part 452 that connects for push part 51 is set in the wings.Push part breakthrough part 452 have by the section that is urged 453 of push part 51 pushing and this be urged section 453 below end side form locking slot 454 as the sticking department 52 of push part 51.Be urged section 453 and bear the pushing force of the push part 51 of perforation, and pushing drawer at movable side location guide member 4 moves to fixed side location guide member 3.Push part 51 is embedded in the locking slot 454 and fixing to retraining around it.

Push part 51 is installed in this drawer at movable side location guide member 4 with bar 6.Push part 51 is made of roller 510.Bar 6 is provided with bar main body 61 integratedly, be formed on a pair of bar base portion 62,62 on the pivot suspension side end of bar main body 61.A pair of bar base portion 62,62 can be formed on the both sides of the opening 450 of drawer at movable side location guide member 4R with being set up in parallel, and each bar base portion 62 has axle penetration hole 621 and the push part penetration hole 622 corresponding with axle breakthrough part 451 and push part breakthrough part 452.In this embodiment, bar 6 adopts two bar base materials and engaging lever main body and forms, wherein, to have elongated bar main body and top be rectangle and bottom to described bar base material for along laterally making two circles of size merge the bar base portion parts that form compound shape.And, between a pair of bar base portion 62,62, action pin 63 is passed on top.Like this, as shown in Figure 6, the a pair of bar base portion 62,62 of bar 6 is crossed on the both sides of the opening 450 of drawer at movable side location guide member 4R from the top, between push part penetration hole 622,622, the roller 510 of push part 51 is installed by the roller bearing 511 of the push part breakthrough part 452 that passes drawer at movable side location guide member 4R, thereby push part 51 is assemblied on the guide member 4R of drawer at movable side location with bar 6.

For the drawer at movable side location guide member 4F in the place ahead, as shown in Figure 5, although have shape, the structure identical with the drawer at movable side location guide member 4R at rear, but, because it is to install with the direction of locating 180 ° of guide member 4R counter-rotatings with respect to the drawer at movable side at rear, therefore, the direction of various piece is just in time opposite with the drawer at movable side location guide member 4R at rear.That is, slightly lean on rear end side to form fastening projection 411 in the central authorities of lower surface 41, upper surface 42 is with plane formation.In this embodiment, on front-end face 43 (end face relative with fixed side location guide member 3), be formed with 3 pawls 401 that can locate with fixed side the longitudinal extension that the groove 301 of guide member 3 engages.Ear end face 44 is with plane formation.About two sides 45,45 with plane formation, between these two sides 45,45, be formed with the opening 450 of grooving 455 and compound shape, connect these two sides 45,45 and form grooving 455 and openings 450.Grooving 455 arranges with horizontal roughly U font from rear end side until near the substantial middle, and, in rear end side the open end is set, near the central authorities closed end is set, thereby forms protruding part 456.At this protruding part 456 helical spring 53 is housed.Opening 450 forms the long hole shape of extending from ear end face 44 side direction front-end faces 43 sides of drawer at movable side location guide member 4.At the rear of this opening 450, be provided with the axle breakthrough part 451 for the axle 7 of supporting drawer at movable side location guide member 4, be provided with forwardly the push part breakthrough part 452 that passes for push part 51.Push part breakthrough part 452 have by the section that is urged 453 of push part 51 pushing and this be urged section 453 above end side form locking slot 454 as the sticking department 52 of push part 51.Be urged section 453 and bear the pushing force of the push part 51 of perforation, and pushing drawer at movable side location guide member 4 moves to fixed side location guide member 3.Push part is embedded in the locking slot 454 and fixing to retraining around it.

Push part 51 is installed on this drawer at movable side location guide member 4 with bar 6.Push part 51 is made of roller 510.Bar 6 is provided with bar main body 61 integratedly, be formed on a pair of bar base portion 62,62 on the pivot suspension side end of bar main body 61.A pair of bar base portion 62,62 can be formed on the both sides of the opening 450 of drawer at movable side location guide member 4F with being set up in parallel, and has axle penetration hole 621 and the push part penetration hole 622 corresponding with axle breakthrough part 451 and push part breakthrough part 452.In this embodiment, bar 6 adopt two bar base materials and make the bar main body in conjunction with and form by the screw fastening, wherein, to have elongated bar main body and bottom be rectangle and top to described bar base material for along laterally making two circles of size merge the bar base portion parts that form compound shape.And, between each is to bar base portion 62,62, action pin 63 is passed in the bottom.Like this, for bar 6, a pair of bar base portion 62,62 is crossed on the both sides of the opening 450 of drawer at movable side location guide member 4F from the below, between push part penetration hole 622,622, roller bearing 511 by the push part breakthrough part 452 that passes drawer at movable side location guide member 4F is installed the roller 510 of push part 51, thereby push part 51 is assemblied on the guide member 4F of drawer at movable side location with bar 6.

Like this, drawer at movable side location guide member 4R, 4F are respectively in intermediate arm 12, make the second end with pawl 401 connect and be bearing on the framework 241 of first end support 24, make the second end of opposite side connect and be bearing in the through hole 250 of the second end bearing section 25.Be assemblied at the helical spring 53 on the protruding part 456 that the second end side otch forms compressed between the end of grooving 455 and the second end bearing section 25, direction towards each drawer at movable side location guide member 4 being pulled away from each fixed side location guide member 3 spurs the application of force.In addition, in these drawer at movable sides location guide member 4R, 4F assembling, the bar main body 61 of the bar 6 at rear is from the inside of intermediate arm 12, and slit by upper surface 124 stretches out to the outside, the bar main body 61 of the bar 6 in the place ahead is from the inside of intermediate arm 12, and slit by lower surface 125 stretches out to the outside.In addition, make axle 7 between two sides 123 of intermediate arm 12,123 the axle through hole 126,126, between a pair of bar base portion 62,62 axle penetration hole 621,621 and the axle breakthrough part 451 of drawer at movable side location guide member 4 pass, bar 6 can be located between the first end of guide member 4 and the second end obliquely by pivot suspension on intermediate arm 12 at drawer at movable side.Like this, each root bar 6 be connected push part 51 and be connected with each drawer at movable side location guide member 4 action ground.If bar 6 is tilted to the direction of fixed side location guide member 3, then in the push part breakthrough part 452 of drawer at movable side location guide member 4, push part 51 pushing is urged section 453 embedding in the locking slot 454, is crimped on the guide member 3 of fixed side location and keeps this state thereby drawer at movable side is located guide member 4.On the other hand, if make bar 6 inclined in opposite directions, then fastening projection 411 combinations of the action pin 63 of bar 6 and drawer at movable side location guide member 4 to retract drawer at movable side location guide member 4, are located guide member 3 thereby it is pulled away from fixed side.

Such as Fig. 4 and shown in Figure 5, fixed base 14 integral body are formed with the tabular of essentially rectangular by steel, be provided with screw through hole 140 at the place, four angles corresponding with each tapped hole 110 of cardinal extremity side arm 11 rear surfaces, around it, also be provided with for fixed base 14 being installed in the indoor a plurality of screw through holes 141 of vehicle drive.By make screw from each screw through hole 140 pass and fastening each tapped hole 110 of cardinal extremity side arm 11, thereby this fixed base 14 is installed on the rear surface of cardinal extremity side arm 11.

As shown in Figure 3, base plate 15 be formed with recess 151 in its positive central authorities in the mode side-prominent to the back side, and the heart offers bolt through hole 152 therein for whole essentially rectangular flat board of being made and being had given size by steel.In addition, such as Fig. 4 and shown in Figure 5, be provided with mounting bracket 16 in the rear surface of this base plate 15.This mounting bracket 16 is formed with section コ word shape by steel, offers mounting hole 160 for mounting base plate 15 at front surface 161.Two sides 162,162 are from the left and right sides of front surface 161 rearward with roughly trapezoidal or the general triangular shape outstanding, and, offer axle through hole 163,163 in the substantial middle of each protruding terminus.Two sides 162,162 pair of bearings section 131,131 chimeric intervals with the front side that can make forward end arm 13 arrange, thereby form pair of bearings section 164,164.On the front surface 161 of mounting bracket 16, with mounting hole 160 with core be folded with packing ring and overlapping base plate 15, make under these mounting holes 160 and the state that the bolt through hole 152 of base plate 15 overlaps, on base plate 15, with bolt through hole 152 with core be disposed with packing ring, disk spring washer, plain washer, make bolt 153 pass through these holes 160,152 from the front surface of base plate 15, and it is twisted the nut 154 of the back side that is connected on the front surface 161 that is arranged in mounting bracket 16.Like this, base plate 15 is installed on the front surface 161 of mounting bracket 16 rotationally and by the surface friction drag effect by generations such as packing rings take bolt 153 as center of rotation with can keeping any rotation angle.

Afterwards, make the mounting bracket 16 and front end side wall 13 chain connections of this base plate 15.In this embodiment, the pair of bearings section 131,131 of front end side wall 13 is set between the pair of bearings section 164,164 of mounting bracket 16, each axle through hole 163,163,130,130 is overlapped.In this state, lining 165 cylindraceous is arranged between bearing portion 131,131 the axle through hole 130,130, and on this lining 165, reels with prescribed direction torsion coil spring 166 is installed.The fastening end fastening (fixing) of torsion coil spring 166 is in the back side of the front surface 161 of mounting bracket 16, and another fastening end fastening (fixing) is on the front surface of front end side arm 13.And, in bearing portion 131,131 both sides, configure packing ring 168,168 with axle through hole 130,130 with core ground, in the bearing portion 164 of mounting bracket 16, a side of 164, configure successively plain washer 169, disk spring washer 170 with axle through hole 163 with core ground, at opposite side, with axle through hole 163 with core plain washer 169 is set.Make pin 171 from a side of this mounting bracket 16, pass axle through hole 163,163,130,130 and lining 165, and with its be riveted on bearing portion 164,164 and bearing portion 131,131 between.Like this, by packing ring 168, plain washer 169 and disk spring washer 170, can screw simultaneously the bearing portion 164,164 and the bearing portion 131,131 of front end side arm 13 of mounting bracket 16.In addition, by torsion coil spring 166, with the elastic force of regulation, along with respect to front end side arm 13 upward rotating direction promote mounting bracket 16.In the situation that base plate 15 is rotated along the vertical direction, by by packing ring 168, plain washer 169 and disk spring washer 170 bearing portion 164,164 and bearing portion 137,137 between the surface friction drag effect that produces with promoted mounting brackets 16 by torsion coil spring 166 with respect to front end side arm 13 force action of rotating power upward, mounting bracket 16 and front end side arm 13 are remained on the arbitrarily angled of above-below direction, thereby base plate 15 can be adjusted to the arbitrarily angled of above-below direction.

In addition, in the present embodiment, for the more fixing pair of bearings section 164 that keeps mounting bracket 16,164 and the pair of bearings section 131,131 of front end side arm 13 between any angle of revolution, set up locking device 8.

Such as Fig. 1 and shown in Figure 4, this locking device 8 has: the axle of the bearing portion of any one (164 or 131) in mounting bracket 16 or front end side arm 13, a plurality of locking slot (or locking aperture) 81 that form with circular-arc arrangement roughly; At least one guide hole 82, it forms and in the 15 rotating whiles of base plate around axle of another bearing portion (131 or 164), can relatively move and can relatively configure at locking slot (or each locking aperture) 81; And stop pin 83, it is being arranged on the guide hole 82 to the mode of a plurality of locking slot (or each locking aperture) 81 advance and retreat, and, push the application of forces by spring assembly to locking slot (or each locking aperture) 81 as normality, by the slide of stop pin 83, stop pin 83 can engage, break away from locking slot (or each locking aperture) 81.

In the present embodiment, as described, locking slot 81 is a plurality of little locking slot 81 (referring to Fig. 5) on the bearing portion 131 that is formed on front end side arm 13 along circular-arc edge part with circular-arc arrangement roughly, guide hole 82 is in the pair of bearings section 164 of mounting bracket 16, is symmetrically formed two guide holes 82 at the assigned position place of the front side corresponding with locking slot 81 take axle through hole 163 as symmetry center.In addition, in this embodiment, a plurality of locking slot 81 are formed on 10 ° of angle intervals on the bearing portion 131 of front end side arm 13, and guide hole 82 is on the bearing portion 164 of mounting bracket 16, and being formed on can be corresponding to any two position in a plurality of locking slot 81.

On the side of a bearing portion 164 of mounting bracket 16, be fixedly installed pin boss body 85, by this pin boss body 85, arrange and have the pair of pin 831 that can pass two guide holes 82,831 stop pin 83.

Pin boss body 85 an end corresponding with guide hole 82 have with cylindric two guide holes 82 to mounting bracket 16 extend, corresponding and diameter is greater than the pin breakthrough part 851 of guide hole 82 with each guide hole 82, has the roughly the same pin through hole 852 of diameter and guide hole 82 at the other end.Pin boss body 85 is also by consisting of to guide hole 82, the pair of pin guide member 850,850 (referring to Fig. 2) of 82 guiding stop pins 83, the joint 853 (referring to Fig. 2) that makes connection between the pin guide member 850,850 and fixing part 854, wherein, fixing part 854 is in the mode on two guide holes 82 that pair of pin guide member 850,850 can be arranged on mounting bracket 16, be formed on pin guide member 850,850 the end with planar, and have the screw breakthrough part at two ends.

Stop pin 83 by pair of pin 831,831 and handle 833 (referring to Fig. 3) consist of, wherein, described pair of pin 831,831 can connect the pair of pin guide member 850,850 of pin boss body 85, described handle 833 is crossed on this between pin 831,831 the base end part and by installations such as screws, and the finger tip engagement portion with finger tip hooking.Each pin 831 forms with thinner cylindric of the diameter front end more smaller than the internal diameter of locking slot 81 and guide hole 82 and with the length longer than the length of pin guide member 850, and from front end distolateral position slightly backward, has the flange 832 in the large footpath pin breakthrough part 851 that can be arranged on pin guide member 850.

Before mounting handle 833, helical spring 84 is reeled be installed in around each pin 831 and fastening under the state on the flange 832, this stop pin 83 by each pin base end part of 831, is passed and connects from large footpath pin breakthrough part 851 of each pin guide member 850 and be installed in the pin boss body 85.Afterwards, handle 833 is installed on the base end part of each pin 831 that connects each pin guide member 850 assembling stop pin 83 and pin boss body 85.By this assembling, each pin 831 of stop pin 83 is by each helical spring 84 application of forces that are arranged in each pin guide member 850, thus the state that the formation forward end is stretched out from each front end of selling guide member 850.Like this, for the stop pin 83 in being assemblied in pin boss body 85, make each pin 831 connect each guide holes 82 of mounting brackets 16, pin boss body 85 is arranged in the bearing portion 164 of mounting bracket 16 and the screw of the screw breakthrough part by passing fixing part 854 is fixed on the bearing portion 164.Like this, stop pin 83 can be arranged on towards locking slot 81 on the guide hole 82 of a bearing portion 164 of mounting bracket 16 with advancing and retreat, and, the application of force by helical spring 84, be slidingly fastened to locking slot 81 under normal conditions, and the operation by handle 833, it is slided along direction of traction, stop pin 83 and each locking slot 81 are broken away from.

In addition, in the present embodiment, for rotation angle arbitrarily, base plate 15 is fixedly remained on reliably on the front surface 161 of mounting bracket 16, set up screw type retainer 9 in the back side of base plate 15.

Such as Fig. 2 and shown in Figure 5, screw type retainer 9 has a pair of tapped hole 90,90 and can be assemblied in a pair of stopper body 91,91 in the described tapped hole 90,90, wherein, on the front surface 161 of mounting bracket 16, described tapped hole 90,90 be formed at bolt 153 around, in this case, described tapped hole 90,90 is formed at the both sides of front surface 161.Each stopper body 91 by can to the back side of base plate 15 advance and retreat be screwed into thread spindle 911 in the described tapped hole 90, be fixed on the front end of thread spindle 911 and the contact component 912 of being made by the higher material of friction factor that contacts with the back side realization face of base plate 15 and rotationally the one knob 913 that is installed in thread spindle 911 rear ends consist of.In the mode at the back side that can push base plate 15, in a pair of stopper body 91 of up and down plug-in mounting, 91 of the front surface 161 of mounting bracket 16.For each stopper body 91, by knob 913 is rotated, the back side of contact component 912 pushing contact base plates 15, to limit the motion of its sense of rotation, on the other hand, by knob 913 is rotated in the opposite direction, contact component 912 leaves the back side of base plate 15, allows its rotation.

Has the monitor arm 1 of this structure by fixed base 14, cardinal extremity side arm 11 is fixed on the indoor mounting ends such as instrument panel of vehicle drive, and monitor unit is installed on the base plate 15 that is assemblied on the front end side arm 13, thereby can be indoor at vehicle drive, in the mode of removable (adjusting) in

arm

11,12,13 length range monitor unit is set.

In addition, this monitor arm 1 passes through bar 6,6 are fixed on the mounting end towards above-below direction (Vertical direction), so that intermediate arm 12 can be with respect to cardinal extremity side arm 11 to left and right direction (substantially horizontal) rotation centered by axle 212, front end side arm 13 can be with respect to intermediate arm 12 to left and right direction (substantially horizontal) rotation centered by axle 222, the mounting bracket 16 of base plate 15 can rotate towards above-below direction (Vertical direction) centered by pin 171 with respect to front end side arm 13, and base plate 15 can rotate centered by bolt 153 at the front surface 161 of mounting bracket 16.In addition, for this monitor arm 1, if (substantially horizontal) is with bar 6 to left and right direction, 6 are fixed on the mounting end, then intermediate arm 12 can rotate towards above-below direction (Vertical direction) centered by axle 212 with respect to cardinal extremity side arm 11, front end side arm 13 can rotate towards above-below direction (Vertical direction) centered by axle 222 with respect to intermediate arm 12, the mounting bracket 16 of base plate 15 can be with respect to front end side arm 13 to left and right direction (substantially horizontal) rotation centered by pin 171, and base plate 15 can rotate centered by bolt 153 on the front surface 161 of mounting bracket 16.

In the situation of the position of regulating monitor unit by this monitor arm 1, make the

location guide member

3,4 of fixed side and drawer at movable side form non-fastening state, make each

arm

11,12,13 mutually to left and right direction (substantially horizontal) or above-below direction (Vertical direction) rotation, to be adjusted to arbitrarily rotation angle.

In Fig. 8, shown with respect to cardinal extremity side arm 11 make intermediate arm 12 to left and right direction (or above-below direction) rotate, with the state of the angle of the left and right directions (or above-below direction) of regulating arm 1 integral body.Intermediate arm 12 is by axle 212, along left and right directions (or above-below direction) rotationally with 11 combinations of cardinal extremity side arm.Leave the fixed side of cardinal extremity side arm 11 locates under the state of guide member 3 at the drawer at movable side location of intermediate arm 12 guide member 4, if make intermediate arm 12 with respect to cardinal extremity side arm 11 to right or left direction (or above-below direction) rotate, then in these intermediate arm 12 motions, drawer at movable side location guide member 4 is in discontiguous situation, and a plurality of grooves 301 of locating guide member 3 around fixed side move.If the rotation of intermediate arm 12 is stopped, then in this position, the pawl 401 of drawer at movable side location guide member 4 is relative with the groove 301 of the part of fixed side location guide member 3.Like this, intermediate arm 12 is rotated with any direction with respect to cardinal extremity side arm 11, and can set arbitrarily rotation angle.

In Fig. 9, shown make front end side arm 13 with respect to intermediate arm 12 to left and right direction (or above-below direction) rotate, with the state of the angle of the left and right directions (or above-below direction) of adjusting base plate 15.Front end side arm 13 is by axle 222, to left and right direction (or above-below direction) rotationally with intermediate arm 12 combinations.Leave the fixed side of front end side arm 13 locates under the state of guide member 3 at the drawer at movable side location of intermediate arm 12 guide member 4, if make front end side arm 13 with respect to intermediate arm 12 to right or left direction (or above-below direction) rotate, then in these front end side arm 13 motions, fixed side location guide member 3 is in discontiguous situation, and the pawl 401 of locating guide member 4 around drawer at movable side moves.If the rotation of front end side arm 13 is stopped, then in this position, the pawl 401 of drawer at movable side location guide member 4 is relative with the groove 301 of the part of fixed side location guide member 3.Like this, front end side arm 13 is rotated with any direction with respect to intermediate arm 12, and can set arbitrarily rotation angle.

By the angle adjustment between this each

arm

11,12,13,

arm

11,12,13 integral body are extended with straight line shape to the front from fixed base 14, extend with straight line shape towards oblique right-hand or oblique left (or above-below direction), perhaps vertically to right-hand or extend to left (perhaps above-below direction) straight line shape.In addition, can also make each

arm

11,12,13 from fixed base 14 to positive, with zigzag fashion or Z-shaped sigmoid, perhaps towards oblique right-hand or oblique left (or above-below direction) with zigzag fashion or Z-shaped sigmoid, perhaps vertically to right-hand or to left (perhaps above-below direction) with zigzag fashion or Z-shaped sigmoid, perhaps, each

arm

11,12,13 is folded on the fixed base 14.

Like this, if determined the position of base plate 15 (namely, the position of monitor unit), then such as Fig. 8 and shown in Figure 9, rotate the

bar

6,6 of handling the place ahead and rear by the direction towards regulation, when locating

guide members

4,4 by

push part

51,51 to fixed side

location guide member

3,3 pushing drawer at movable sides, push

part

51,51 is engaged with

sticking department

52,52, thereby will be locked in arbitrarily rotation angle between the

arm

11,12,13.

As shown in Figure 5, if rearward promote the rear square bar 6 of intermediate arm 12 so that its banking motion, the push part 51 that then is installed in bar 6 bottoms is rearward rotated, and push backward the section that is urged 453 of rear drawer at movable side location guide member 4R, thereby location guide member 4R is whole to the mobile drawer at movable side of fixed side location guide member 3 pushings, and the pawl 401 of drawer at movable side location guide member 4R firmly engages with the groove 301 of the part of fixed side location guide member 3.Afterwards, reach capacity if further push away by force this bar 6, then push part 51 is crossed protuberance between the section of being urged 453 and the locking slot 454 and is chimeric with locking slot 454, and is fixed by the constraint of this locking slot 454.By this, with respect to cardinal extremity side arm 11, with arbitrarily rotation angle locking intermediate arm 12.In addition, because in this embodiment, on the outer circumferential face of the bearing 21 of cardinal extremity side arm 11, be formed with a plurality of grooves 301 with 10 ° of angle intervals, therefore, intermediate arm 12 can carry out angle adjustment with 10 ° of angle intervals with respect to cardinal extremity side arm 11,

Equally, if forwards promote the front square bar 6 of intermediate arm 12 and make its banking motion, the push part 51 that then is installed in bar 6 tops is forwards rotated, forwards push the section that is urged 453 of drawer at movable side location, the place ahead guide member 4F, thereby location guide member 4F is whole to the mobile drawer at movable side of fixed side location guide member 3 pushings, so that the pawl 401 of drawer at movable side location guide member 4 firmly engages with the groove 301 of the part of fixed side location guide member 3.Afterwards, reach capacity if further push away by force this bar 6, then protuberance and the locking slot 454 crossed between the section of being urged 453 and the locking slot 454 of push part 51 is chimeric, and is fixed by the constraint of this locking slot 454.By this, with respect to intermediate arm 12, can be with arbitrarily rotation angle locking front end side arm 13.In addition, because in this embodiment, on the outer circumferential face of the bearing 23 of front end side arm 13, be formed with a plurality of grooves 301 with 10 ° of angle intervals, therefore, front end side arm 13 can carry out angle adjustment with 10 ° of angle intervals with respect to intermediate arm 12.

In addition, this monitor arm 1 is the mounting bracket 16 with base plate 15 is installed in rotation on situation on the front end side arm 13 towards above-below direction under, as shown in Figure 4, owing to utilizing by packing ring 168, plain washer 169, disk spring washer 170 is at bearing portion 164,164 with bearing portion 131, the surface friction drag effect that produces between 131 with promote bearing portions 164 by torsion coil spring 166,164 with respect to bearing portion 131, making a concerted effort of 131 power of rotating upward, can arbitrarily angle of above-below direction will be remained between mounting bracket 16 and the front end side arm 13, therefore, (front) direction of base plate 15 can be adjusted to arbitrarily angle of above-below direction, and be maintained at arbitrarily angled.

In addition, as shown in figure 10, in this monitor arm 1, owing to having set up locking device 8, therefore, the rotation angle of fixed base seat board 15 more reliably.In this case, such as Figure 10 and shown in Figure 11, at the handle 833 of pulling locking device 8 and pair of pin 831 is broken away under the locking

slot

81,81 state at two places, the rotation angle of adjusting base plate 15, if decontrol handle 833, then pair of pin 831 is in the locking

slot

81,81 at two places is inserted in the position corresponding with this rotation angle, and by its engaging, the motion of the sense of rotation of restriction base plate 15, and the fixing rotation angle that keeps.In addition, in the present embodiment, owing to being formed with a plurality of locking slot 81 with 10 ° of angle intervals in the pair of bearings section 131 of front end side arm 13, therefore, base plate 15 can carry out angle adjustment with 10 ° of angle intervals.

In addition, as shown in figure 11, in this monitor arm 1, base plate 15 is at the front surface of mounting bracket 16, can centered by bolt 153, rotate, in addition, as shown in figure 10, can fix by two spiral retainers 9 that are arranged on base plate 15 back side the rotation angle that keeps this base plate 15.In this case, for each stopper body 91, by knob 913 is rotated, the back side of contact component 912 pushing contact base plates 15 is to limit its motion in rotational direction, on the other hand, by knob 913 is rotated, contact component 912 leaves base plate 15, to allow its rotation.So, under the state of each retainer 9 that relaxes, base plate 15 is rotated arbitrarily, after determining rotation angle, if screw each retainer 9, then can fix its rotation angle of maintenance.

Like this, by this monitor arm 1, monitor unit for a long time, stably can be remained on the desirable position of user.In addition, in the situation of the setting position that changes monitor unit, towards with each root bar 6 of direction bank control of afore mentioned rules opposite direction, to remove engaging of push part 51 and sticking department 52, can by the effect of helical spring 53, automatically terminate the locking between each

arm

11,12,13 thus.Then, again pass through each

location guide member

3,4 of fixed side and drawer at movable side, make mutually to left and right direction (or above-below direction) rotation of each

arm

11,12,13, and after being adjusted to arbitrarily rotation angle, by towards each root bar 6 of prescribed direction bank control, can will be locked in arbitrarily rotation angle between each

arm

11,12,13.By removing the stationary state that is formed by locking device 8, retainer 9, suitably the direction of adjusting base plate 15, rotation angle thereafter, need only and pass through similarly fixed base seat board 15 of locking device 8, retainer 9.

As described above, by this monitor arm 1, each

arm

11,12,13 can be adjusted to arbitrarily angle, and can firmly fix these arms.Particularly, even indoor at the vehicle drive that is easy to be subject to influence of vibration, still can steadily in the long term monitor unit be remained on the desired assigned position of user place.In addition, owing to passing through the rotating operation of bar 6, can automatically terminate the locking between each

arm

11,12,13, therefore, also can easily carry out the variation of angle between each

arm

11,12,13 and regulate.

In addition, according to described monitor arm 1, can also realize following effect.

(1) bearing 22 of intermediate arm 12 by have axle through hole 220,220 pair of bearings section 221,221 consists of, the

bearing

21,23 of cardinal extremity side arm 11 and front end side arm 13 can be entrenched in respectively between the pair of bearings section 221,221 of intermediate arm 12, and axle passes hole 210,230 roughly semicylindrical bearing consists of by having at its axle core.Make axle pass that hole 210 and axle through hole 220,220, axle pass hole 230 and axle through hole 220,220 axle core overlaps, thereby bearing 21,23 is embedded between the pair of bearings section 221,221,221, between 221, so as axle 212,222 warp beam through holes 220,220 and axle pass hole 210 and axle through hole 220,220 and axle pass hole 230 between each bearing 22,21, pass between 22,23.Fixed side

location guide member

3,3 is respectively formed on the

bearing

21,23 outer circumferential face of cardinal extremity side arm 11 and front end side arm 13.So, in each

arm

11,12 of terminal side, centre, forward end, 13 connection, the fixed side of can packing into simply

location guide member

3,3.

(2) the respectively rear in intermediate arm 12 and the place ahead, be provided for supporting the first end support 24 of first end side of the pawl 401 with drawer at movable side location guide member 4 and the second end bearing section 25 of supporting the second end side of its opposition side, at the drawer at movable side location at intermediate arm 12 interior installation the place aheads and rear guide member 4,4.To this, each drawer at movable side location guide member 4 connects first end and is bearing in the framework 241 of first end support 24, the second end is connected be bearing in the through hole 250 of the second end bearing section 25, being folded with between the second end side and the second end bearing section 25 can be from the helical spring 53 of the moving drawer at movable side of first end support 24 side direction the second end bearing section 25 laybacks location guide member 4.By this helical spring 53, under normal conditions, with the direction that is pulled away from fixed side location guide member 3 drawer at movable side is located guide member 4 application of forces.So, can simply drawer at movable side be located guide member 4,4 and pack in the intermediate arm 12, thereby can under normal conditions to be pulled away from the direction of fixed side location guide member 3, spur reliably each drawer at movable side location guide member 4.

(3) each drawer at movable side location guide member 4 is the tabular of essentially rectangular, and between two side 45,45, form the opening 450 with compound shape, this opening 450 forms the long hole shape of extending from the second end side direction first end side of drawer at movable side location guide member 4, be provided for locating for the supporting drawer at movable side axle breakthrough part 451 of axle 7 perforations of guide member 4 in the second end side of this long hole shape, the push part breakthrough part 452 that connects for push part 51 is set in the first end side.This push part breakthrough part 452 has the section that is urged 453 that is urged parts 51 pushing, forms locking slot 454 as the sticking department 52 of push part 51 being urged section's 453 end side.Be urged the pushing force that parts 453 bear the push part 51 of passing, and make drawer at movable side location guide member 4 mobile to guide member 3 pushings of fixed side location.Push part 51 is embedded in the locking slot 454 and fixing to retraining around it.Relative therewith, each root bar 6 is provided with bar main body 61 and is formed on a pair of bar base portion 62,62 on the pivot suspension side end of bar main body 61, this to bar base portion 62,62 can and row arrangement ground form both sides at the opening 450 of drawer at movable side location guide member 4.Each bar base portion 62 has push part breakthrough part 452, axle penetration hole 621 and the push part penetration hole 622 corresponding with push part breakthrough part 452.Between push part penetration hole 622,622, by the roller bearing 511 that the push part breakthrough part 452 that connects drawer at movable side location guide member 4 arranges, the push part 51 that is made of roller 510 is installed.When drawer at movable side being located guide member 4 and bar 6 and is arranged between two sides 123,123 of intermediate arm 12, bar main body 61 is outstanding from the inside of intermediate arm 12 to the outside, is arranged on axle 7,7 between two sides 123,123 of intermediate arm 12 and passes bar base portion 62,62 axle penetration hole 621,621 and the axle breakthrough part 451 of drawer at movable side location guide member 4.Bar 6 is arranging in the mode that drawer at movable side is located banking motion between the second end of guide member 4 and the first end, banking motion by bar 6, in the push part breakthrough part 452 of drawer at movable side location guide member 4, push part 51 is can push the section of being urged 453 and can arrange with the chimeric mode of locking slot 454, by the pushing of push part 51, drawer at movable side location guide member 4 can be crimped on the guide member 3 of fixed side location and be arranged in the intermediate arm 12.So, can drive simply connection drawer at movable side location guide member 4 and bar 6, by the operation of bar 6, can locate guide member 3 to fixed side and push simply, reliably drawer at movable side location guide member 4, realize reliable fixing thereby can push the position at this.

(4) for base plate 15 and front end side arm 13, by being arranged on the pair of bearings section 164,164 of base plate 15 back side, be arranged on the pair of bearings section 131,131 on the front end side arm 13, the pin 171 that between these bearing portions 164,164,131,131, passes, with and each arm 11,12,13 between the direction of sense of rotation quadrature on rotating mode base plate 15 is installed on the front end side arm 13.Base plate 15 is fixed by locking device 8 with respect to the rotation angle of front end side arm 13 and is kept.This locking device 8 has a plurality of locking slot 81 (or locking aperture), at least one (be two this moment) guide hole 82 and stop pin 83, wherein, described a plurality of locking slot 81 (or locking aperture) is around the pair of bearings section 164 of base plate 15,164 or the pair of bearings section 131 of front end side arm 13, the axle of any one in 131, in this case, be formed on the pair of bearings section 131 of front end side arm 13 with circular-arc arrangement roughly, on 131, described guide hole 82 is around another axle, in this case, be formed at the pair of bearings section 164 of base plate 15, on 164, and, when base plate 15 rotates, can relatively move and can relatively configure at locking slot 81 (or each locking aperture), described stop pin 83 can be arranged on each guide hole 82 to locking slot 81 (or each locking aperture) with advancing and retreat, and, under normal conditions, pushed the application of force by spring assembly to locking slot 81 (or each locking aperture).Stop pin 83 and locking slot 81 (or each locking aperture) slide by stop pin 83, can in conjunction with, break away from.So, by the wedge effect that the stop pin 83 by this locking device 8 forms, can be completely fixed the mounting bracket 16 of base plate 15 and any rotation angle between the front end side arm 13, therefore, can make base plate 15 towards above-below direction angle arbitrarily, and be fixed reliably.

(5) base plate 15 forms with the general plane shape, and is installed in rotation on by the bolt 153 that passes in its approximate centre on the front surface 161 of mounting bracket 16 of back side.Around the bolt 153 of this mounting bracket 16, by the spiral retainer 9 with the mode plug-in mounting that can push base plate 15 back sides, the fixing rotation angle that keeps base plate 15.So, can regulate and fixed base seat board 15 reliably with rotation angle arbitrarily.

In addition, although in the present embodiment, in hinge means 2, on the outer circumferential face of semicylindrical bearing roughly, as fixed side location guide member 3, be provided with groove 301, and the end at drawer at movable side location guide member 4 is provided with pawl 401, but, replace, as fixed side location guide member 3, also can the hole be set at the outer circumferential face of semicylindrical bearing roughly, end at drawer at movable side location guide member 4 arranges the projection that can engage with this hole, like this, also can obtain the action effect identical with above-mentioned mode of execution.In addition, in this hinge means 2, for the pushing state of 51 pairs of drawer at movable sides location of fixing push part guide member 4, being provided with at drawer at movable side location guide member 4 can be chimeric, the locking slot 454 of constraint push part 51, but, also can form this locking shape section in intermediate arm 12 sides.In addition, for the pushing state of 51 pairs of drawer at movable sides location of fixing push part guide member 4, can locate guide member 4 or intermediate arm 12 at drawer at movable side the sticking department that engages with the part of bar 6 and lock is set.Like this, also can obtain the action effect identical with above-mentioned mode of execution.

In addition, although in the present embodiment, consisted of device supporting arm 1 by cardinal extremity side arm 11, intermediate arm 12, front end side arm 13,, also can consist of by cardinal extremity side arm and these two arms of front end side arm, intermediate arm can be made of a plurality of arms.In this case, connected by hinge means 2 between each arm, can obtain thus the action effect identical with above-mentioned mode of execution.

In addition, in the present embodiment, owing between the pair of bearings section 164,164 of mounting bracket 16, being provided with the pair of bearings section 131,131 of front end side arm 13, also be provided with locking device 8, therefore, at the edge part of each bearing portion 131 of front end side arm 13, formed a plurality of locking slot 81 with roughly circular-arc, and the assigned position place corresponding with the edge part of bearing portion 131 formed guide hole 82 in the side of each bearing portion 164 of mounting bracket 16.In other mode of execution, the pair of bearings section 164,164 of mounting bracket 16 also can be set between the pair of bearings section 131,131 of front end side arm 13, in this case, can be at the edge part of each bearing portion 164 of mounting bracket 16, with a plurality of locking slot of circular-arc formation roughly, and on two sides of each bearing portion 131 of front end side arm 13, form guide hole at the assigned position place corresponding with the edge part of each bearing portion 164.In addition, a plurality of grooves 81 can change a plurality of holes into.Like this, also can obtain the action effect identical with above-mentioned mode of execution.

In addition, although in this embodiment, device supporting arm 1 is illustrated as especially for the indoor monitor arm of vehicle drive that monitor unit is arranged on car or lorry etc., but, this device supporting arm 1 is except monitor unit, the various devices such as computer or television set are being arranged in office or the family etc., perhaps, except the vehicles such as automobile, be arranged in the situation in aircraft or the boats and ships etc., also be operable equally, and, the action effect identical with above-mentioned mode of execution can be obtained.

Claims

1. one kind is installed supporting arm, it is provided with a plurality of arms, the above-mentioned arm of adjacency with can mutually rotate by hinge means and the above-mentioned arm of adjacency between can keep the mode of any rotation angle to connect, the arm of terminal side is fixed on mounting end in above-mentioned a plurality of arm, arm in forward end is installed various devices, and the mode moving freely in the length range of above-mentioned each arm is arranged on various devices on the mounting end, it is characterized in that

Above-mentioned hinge means is provided with:

The bearing that can be connected with the bearing of above-mentioned roughly tubular that the bearing of the roughly tubular that the connecting end of an arm forms in the above-mentioned arm of adjacency and the connecting end of another arm that is connected form with relatively rotating;

The axle that between the above-mentioned bearing of the above-mentioned arm of adjacency, connects;

Be arranged on above-mentioned roughly tubular bearing outer circumferential face and comprise fixed side location guide member along a plurality of grooves that circumferentially form or hole;

Drawer at movable side location guide member, as the drawer at movable side location guide member that can arrange with respect to above-mentioned fixed side location guide member with advancing and retreat, it is arranged on above-mentioned another arm, and pass through spring assembly, be pulled away under normal conditions above-mentioned fixed side location guide member, and, on the first end relative with above-mentioned fixed side location guide member, have pawl or the projection that can engage with above-mentioned groove or hole;

Bar, it has the push part that can push to above-mentioned fixed side location guide member above-mentioned drawer at movable side location guide member;

And sticking department, it is arranged on above-mentioned drawer at movable side location guide member or above-mentioned another arm, and under the state that above-mentioned drawer at movable side location guide member is pressed against on the guide member of above-mentioned fixed side location, its another part with above-mentioned push part or above-mentioned bar engages, to limit the motion of above-mentioned bar

Be under the non-fastening state at above-mentioned fixed side location guide member and drawer at movable side location guide member, make above-mentioned arm mutually to left and right direction or above-below direction rotate, will being adjusted to arbitrarily rotation angle between the above-mentioned arm,

Rotate the above-mentioned bar of manipulation towards prescribed direction, thereby by above-mentioned push part, push above-mentioned drawer at movable side location guide member to above-mentioned fixed side location guide member, simultaneously, another part of above-mentioned push part or above-mentioned bar is engaged with above-mentioned sticking department, being locked in above-mentioned arbitrarily rotation angle between the above-mentioned arm

By handling above-mentioned bar towards rotating with the direction of afore mentioned rules opposite direction, can remove another part of above-mentioned push part or above-mentioned bar and engaging of above-mentioned sticking department, thereby remove the locking between the above-mentioned arm.

2. device supporting arm as claimed in claim 1 is characterized in that,

The bearing that forms at the connecting end of above-mentioned another arm is made of the pair of bearings section that has the axle through hole at its axle core, the bearing of above-mentioned roughly tubular is by being entrenched in this between the bearing portion and have the roughly semicylindrical bearing that axle passes the hole at its axle core and consist of, the axle core that makes above-mentioned axle through hole and above-mentioned axle pass the hole overlaps and makes above-mentioned roughly semicylindrical bearing to be entrenched between the above-mentioned pair of bearings section, makes above-mentioned axle run through above-mentioned axle through hole and above-mentioned axle passes the hole.

3. device supporting arm as claimed in claim 1 or 2 is characterized in that,

Be used for supporting that above-mentioned drawer at movable side location guide member has the first end support of first end of above-mentioned pawl or projection and the second end bearing section that is used for the second end of its opposition side of supporting is arranged in above-mentioned another arm, above-mentioned drawer at movable side location guide member is bearing in above-mentioned first end on the above-mentioned first end support, above-mentioned the second end is bearing in above-mentioned the second end bearing section, sandwiched can spur from above-mentioned first end support to above-mentioned the second end bearing section the helical spring of above-mentioned drawer at movable side location guide member between above-mentioned the second end and above-mentioned the second end bearing section, by this helical spring, towards the direction that is pulled away from fixed side location guide member above-mentioned drawer at movable side is located the guide member application of force under the normality.

4. such as each described device supporting arm in the claims 1 to 3, it is characterized in that,

Above-mentioned drawer at movable side location guide member is the tabular of essentially rectangular, and between two side, form the opening with compound shape, above-mentioned opening forms the long hole shape of extending to first end from the second end of above-mentioned drawer at movable side location guide member, be provided for locating for the above-mentioned drawer at movable side of supporting the axle breakthrough part of the axle perforation of guide member in the above-mentioned the second end side of this long hole shape, the push part breakthrough part that passes for above-mentioned push part is set in above-mentioned first end side, this push part breakthrough part has the section that is urged that is urged the parts pushing, at the locking slot of the end side formation that is urged section as the sticking department of push part, the pushing force of the push part of perforation is born by the above-mentioned section of being urged, and to the mobile above-mentioned drawer at movable side of above-mentioned fixed side location guide member pushing location guide member, in above-mentioned locking slot, embed above-mentioned push part and fixing to retraining around it

Above-mentioned bar is provided with the bar main body and is formed at a pair of bar base portion on the pivot suspension side end of bar main body, this also forms the both sides at the above-mentioned opening of drawer at movable side location guide member in row arrangement ground to the bar base portion, each bar base portion has axle through hole and the push part through hole corresponding with above-mentioned axle breakthrough part and above-mentioned push part breakthrough part, between the push part through hole, roller bearing by the push part breakthrough part setting of passing drawer at movable side location guide member, the above-mentioned push part that installation consists of roller

Above-mentioned drawer at movable side location guide member and bar are arranged between two sides of above-mentioned another arm, simultaneously, above-mentioned bar main body is stretched out to the outside from the inside of above-mentioned another arm, the axle that is arranged between two sides of above-mentioned another arm runs through the axle penetration hole of above-mentioned bar base portion and the axle breakthrough part of above-mentioned drawer at movable side location guide member, be arranged on to above-mentioned bar tiltable campaign between the second end and first end of above-mentioned drawer at movable side location guide member, banking motion by above-mentioned bar, in the push part breakthrough part of above-mentioned drawer at movable side location guide member, above-mentioned push part above-mentionedly is urged section and can arranges with the chimeric mode of above-mentioned locking slot pushing, by the pushing of above-mentioned push part, above-mentioned drawer at movable side location guide member arranges in the mode that can be crimped on the guide member of fixed side location.

5. such as each described device supporting arm in the claim 1 to 4, it is characterized in that,

Above-mentioned a plurality of arm is made of cardinal extremity side arm, intermediate arm and front end side arm, and above-mentioned cardinal extremity side arm is provided with for installing the whole fixed base that is fixed on the mounting end that supports of supporting arm, and above-mentioned front end side arm is provided be used to the pedestal that various devices are installed.

6. 5 device supporting arm as claimed in claim is characterized in that,

The bearing of the back side by being arranged on said base, be arranged on the bearing on the above-mentioned front end side arm, the axle that between these bearings, connects, with the mode of said base with the direction rotation of the sense of rotation quadrature between energy edge and the above-mentioned arm, be installed on the above-mentioned front end side arm, and by the rotation angle of the fixing maintenance of locking device said base with respect to above-mentioned front end side arm

This locking device has: the axle of the bearing of any one in said base or above-mentioned front end side arm, with a plurality of locking slot or the locking aperture of roughly circular-arc arrangement formation; Form and can at above-mentioned locking slot or locking aperture relatively moves and at least one guide hole that can be oppositely arranged when said base is rotated around the axle of another bearing portion; And can be arranged on the above-mentioned guide hole towards above-mentioned locking slot or locking aperture with advancing and retreat, and pass through spring assembly, be urged under normal conditions the stop pin of the application of force to above-mentioned locking slot or locking aperture, by the slide of above-mentioned stop pin, above-mentioned stop pin can engage, break away from above-mentioned locking slot or locking aperture.

7. such as claim 5 or 6 described device supporting arms, it is characterized in that,

Said base forms with the general plane shape, and be installed in rotation on by the axle that connects its approximate centre on the bearing of back side, around the above-mentioned axle of the bearing of above-mentioned back side, by pushing the spiral retainer of ground, said base back side plug-in mounting, the fixing rotation angle that keeps said base.